Ref: - Water/Methanol Injection, a little bit of history first I bought my car around 18-months ago one owner FVWSH 89,000 etc etc, been wanting a 2.5tdi V6 for a while. A close friend of mine who who lives within "spittin" distance of me and who has vagcom and who is also an agent for the german DTE tuning boxes, which was the first thing I had installed along with the K&N filter, which transformed the car and as been 100% trouble free. Well we were looking into disconnecting the egr valve which he could do with the vagcom and whilst the vagcom was connected to the car it ran much better it was smoother and felt a little quicker, however VW in it's infinite wisdom set it to default back so it couldn't be disconnected permanently, unlike earlier models, I even tried just disconnecting it which was fine for about an hour until the engine management light came on. So I was a little concerned about the amount of **** that was being introduced through the motor with this valve in operation and was reading about the benefits of water/methanol injection and how it steam cleans the internals of the motor manifolds, turbo, egr, ports etc. I have seen pics of motors stripped down that have used this system and they are spotless inside where you would normally find them all gummed up with carbon etc so I booked it in to have a Devilsown system fitted which meant a drive up to near Brighton I think it was early on a Sunday morning. I spent the day with the guy who is a brother of the guy who runs the company and who is also a Seat technician, who basically gets to fit the systems in his spare time me being an ex spanner man helped him out for which he was very grateful. It was a different beast driving home when the boost comes in it injects the mix fed from a tank in the back through a very high pressure pump and through two-1mm injectors, one low down the front of the car close to the right-hand side intercooler and the second in the inlet manifold just after the throttle body, the controller is in the glove box, which is adjustable but I haven't played with it, left it the way the guy set it up, apart from cleaning the little filters every now and then, one on each injector, and keeping the tank topped up that's about all there is to it, again it has been more or less trouble free, stopped working once due to clogged injector filters, needless to say when driven in anger and using a lot of boost it can empty the 2.5 litre bottle in less than 50 miles.